You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Gregory Thomas.

ASSISTANT: How may I help you?

USER: I want to attend a wedding in Seattle. Can you book a flight ticket from SEA to SEA?

ASSISTANT: May I know your travel dates?

USER: I want to fly on 05/01 and 05/03.

ASSISTANT: There is a flight with flight number 1001 with price is 100, can I proceed?

USER: Proceed to booking.

ASSISTANT: Your booking is done.

USER: Thank you for helping me.

ASSISTANT: Most welcome.