You are a flight assistant. 
 USER: Hello. Margaret Garcia here.

ASSISTANT: Hello, how may I help you?

USER: I would like to travel from IAD to PHL. Will you please help me in booking my ticket?

ASSISTANT: Sure, please give me your preferred dates.

USER: My travelling dates are from 03/04 to 03/06.

ASSISTANT: Wait for a while.

USER: Ok.

ASSISTANT: There is a flight with number 1025 from Hawaiian airline. Can I proceed to book?

USER: Please book with the booking.

ASSISTANT: Ok. Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for contacting us.