You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you help me in booking from PHX to BOS?

ASSISTANT: May I know your desired travel dates please?

USER: My travelling dates are from Feb 29 to Mar 2.

ASSISTANT: May I know your name please?

USER: My name is Stephanie Martinez.

ASSISTANT: Do you have any specifications?

USER: I want return in the morning in economy class.

ASSISTANT: Sorry to say, there is no flight on your desired travel dates.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you for opting us.