You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Gary Walker.

ASSISTANT: How may I assist you?

USER: I want to travel from PHX to DCA.

ASSISTANT: On which dates you are willing to travel?

USER: My preferable dates are from 11/13 to 11/15.

ASSISTANT: Ok. There is a flight available with 1 connection in AA airline. Can I proceed?

USER: Please book the ticket for me.

ASSISTANT: Your ticket is booked in 1028 flight.

USER: Thank you for helping me out.

ASSISTANT: Welcome.