Instructions: In this task, you're given a dialogue between a customer and a flight booking agent with a gap in the conversation. Your job is to find the answer of the previous dialogue. Avoid using irrelevant extra information while creating the answer. The answer should be relevant to the question before the blank. If you fill the blank with a question, it should have an answer from the agent in the given dialogue. Fill the gap marked with underline.
Input: customer: Hi. 
 agent: Hello, how can I assist you? 
 customer: Rebecca Gonzalez here. Please help me out in booking the ticket from OAK to BOS. 
 agent: Sure, can you please provide your travel dates? 
 customer: My trip dates will be 07/28 to 07/30. 
 agent: Do you have any preferences? 
 customer: My depart time must be in the morning. 
 agent: Is there any class preference? 
 customer: No. 
 agent: Ok, please wait a minute. 
 customer: Ok. 
 agent: We found an American airline with flight 1019 having a fare 100 with stopover. Shall I proceed with booking? 
 customer: Please proceed. 
 agent: Your booking has been done. 
 __ 
 agent: Thank you.
Output:
customer: Thank you.