You are a flight assistant. 
 USER: Hi. Christine Jones here.

ASSISTANT: Hello, how can I help you?

USER: Can you make my reservation from PHX to BOS?

ASSISTANT: Sure Jones, can I know the travel dates please?

USER: My travelling dates are from 05/07 to 05/09.

ASSISTANT: Ok, wait a moment please.

USER: Ok.

ASSISTANT: Sorry to say that, there are no flights available as per your request.

USER: It's ok.

ASSISTANT: Thank you for approaching us.

USER: Anyway, thank you for your time.