You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Rachel Thomas.

ASSISTANT: How may I guide you?

USER: I would like to attend my sister's marriage in Washington, can you please help me in booking a flight ticket?

ASSISTANT: Sure, can I know the details of travel?

USER: It's from PHX to IAD. The dates are from 06/11 to 06/13.

ASSISTANT: Hold on for a moment.

USER: Ok.

ASSISTANT: AA airlines flight 1024 matches with your preferences, can I proceed?

USER: Ok, please book the ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you, have a good day.