You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Rachel Hernandez, want to travel from SEA to SFO. Please help me in booking my flight ticket.

ASSISTANT: May I know your travel dates?

USER: Sure, my travelling dates are from 05/19 to 05/21.

ASSISTANT: There is a flight with flight number 1012 with price is 100, can I proceed?

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Most welcome.