You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I would like to travel from BOS to LAX as a holiday trip. Can you do the reservation?

ASSISTANT: Sure, may I know your travel dates please?

USER: My journey dates are 09/18 and 09/20.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: No issue, Thanks for the information.

ASSISTANT: May I know your name please?

USER: Steven Green here.

ASSISTANT: Thank you for approaching us.