You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: My name is Sandra Brown. I have a business meeting in Phoenix. Can you help me for booking a flight ticket from CLT to PHX?

ASSISTANT: Sure, can I know your preferable dates?

USER: My travelling dates are 10/29 and 10/31.

ASSISTANT: I found a flight 1020 of UA airlines matches with your preferences, can I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for booking.

ASSISTANT: Thank you, have a good day.

USER: Welcome.