Detailed 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.
Q: customer: Hello. 
 agent: Hello, how may I help you? 
 customer: My name is Stephanie Carter. 
 agent: Nice to meet you Stephanie Carter. 
 customer: I want to book a ticket from IAH to SEA, could you please help me? 
 agent: Sure, may I know your travelling dates? 
 customer: My required dates are 05/19 and 05/21. 
 agent: I am sorry there is no flight available with us. 
 __ 
 agent: Thank you for approaching us.
A:
customer: It's ok. Thank you for the help.