You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am Jerry Gonzalez want to visit Boston, can you book a ticket from HOU to BOS?

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

USER: Sure, my travelling dates will be 04/07 and 04/09.

ASSISTANT: Jerry Gonzalez, there are no flights available in your route.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.