You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Mary Jones.

ASSISTANT: How may I assist you now?

USER: I am planning to attend music concert at LAX, can you please help me with booking a flight ticket from BOS?

ASSISTANT: Ok, may I know your travelling dates please?

USER: Sure, I would like to take off on 02/09 and return back on 02/11.

ASSISTANT: Please give me a moment to check with availability for you.

USER: Sure.

ASSISTANT: Sorry, no flights are available for you.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for approaching us.

USER: You are welcome.