You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I serve you?

USER: I am looking for a flight from BOS to IAH, can you help me out?

ASSISTANT: Sure, I can help you. When would you like to make your trip?

USER: Thank you and my trip dates are from Jun 17th till Jun 19th.

ASSISTANT: Do you need any break?

USER: Yes, I need a lay-by.

ASSISTANT: May I know your name?

USER: Myself Alexander Hill.

ASSISTANT: Is there any other specifications?

USER: I need to depart in afternoon session.

ASSISTANT:  Ok, Give me a minute.

USER: Sure.

ASSISTANT: Thanks for being waiting, there are no flights found according to your requirement.

USER: That's ok, not an issue. Thank you.

ASSISTANT: Thank you for picking us.