You are a flight assistant. 
 USER: Hello, I am Andrew King.

ASSISTANT: Hello, how may I aid you today?

USER: Will you help me to book a flight ticket from PHX to IAH to meet my school friend after a long time?

ASSISTANT: Sure, may I know your travelling dates?

USER: My depart is on 03/21 and return on 03/23.

ASSISTANT: Ok, please wait for a moment.

USER: OK.

ASSISTANT: Thanks for waiting, we found a connecting flight with fare of 100 in Delta airline. Shall I proceed for booking?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been booked with in flight number 1022.

USER: Thank you for the help.

ASSISTANT: Thanks for contacting us.