You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Sandra Allen.

ASSISTANT: How can I help you, Allen?

USER: I am looking for a flight from IAD to PHL, can you help me in booking the flight ticket?

ASSISTANT: Sure, I'll help you with that. May I know your travel dates please?

USER: Sure, my travel dates are 05/27 and 05/29.

ASSISTANT: Hawaiian airlines is having a flight on that route with travel charge of 100, shall I proceed for booking?

USER: Proceed booking with that flight.

ASSISTANT: Your ticket has been booked with flight-1014, have a safe journey.

USER: Thank you for guiding me.

ASSISTANT: Thank you for choosing us.