You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: Myself Thomas Garcia. I want to travel from IAH to BOS locations, can you please help me in booking a flight ticket?

ASSISTANT: Sure, may I know your travel dates please?

USER: My travelling dates are from 03/10 and 03/12.

ASSISTANT: Thanks for waiting. But I am sorry to say that there are no flights available with us.

USER: It's ok. Thank you for the information.

ASSISTANT: Thank you.