You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you now?

USER: Myself Jessica Lee. Can you please help me with finding a flight on 02/22 from PHX? As I have to go Boston to give guest lecture in famous university.

ASSISTANT: Sure, please let me know your return date and destination airport code.

USER: Sure, I need to return on 02/24 from BOS.

ASSISTANT: Give me a minute please.

USER: Sure, take your time.

ASSISTANT: Sorry Jessica, there is no flights available as per your requested dates.

USER: Oh! It is sad to hear.

ASSISTANT: Thank you for using our services.