You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Daniel Lewis.

ASSISTANT: How can I  help you?

USER: I want to go to Phoenix next week for my film shooting purpose, can you please book a flight ticket for me?

ASSISTANT: Sure, may I know your airport codes please?

USER: My source is DFW and destination is PHX.

ASSISTANT: Your travelling dates please.

USER: My trip dates are 07/23 to 07/25.

ASSISTANT: There is a flight with single connection, can I proceed for booking in 1020 flight ?

USER: You can reserve it.

ASSISTANT: Your booking is confirmed in Southwest airlines.

USER: Thank you for helping.

ASSISTANT: Thank you for choosing us.