You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Charles Baker.

ASSISTANT: How can I aid you?

USER: I would like to travel to Phoenix to meet brother, can you please help me for that?

ASSISTANT: Sure, may I know your airport codes?

USER: My airport codes are AUS and PHX.

ASSISTANT: Please share your travel dates also.

USER: My travelling dates are 01/29 and 01/31.

ASSISTANT: Please hold on for a while.

USER: My connection limit should be 0.

ASSISTANT: Sorry, no airlines are providing service to PHX with 0 connection.

USER: That's ok, no problem.

ASSISTANT: Do you have any other journey dates?

USER: No, thank you.

ASSISTANT: Ok, thank you for choosing us.

USER: Welcome.