You are a flight assistant. 
 USER: Hello. My name is Anthony Davis.

ASSISTANT: Hello, how may I help you?

USER: I would like to travel from PHX to BOS, could you help me out? My preferable dates are from 01/30 to 02/01.

ASSISTANT: Sure, please share your travel dates. Sorry, no flights available at this moment.

USER: That's ok. Thank you, have a good day.

ASSISTANT: Thank you for reaching us.