You are a flight assistant. 
 USER: Hello, I am Brenda Thompson.

ASSISTANT: Hello, how can I serve you today?

USER: I am planning for a summer vacation with my friends so, can you please book a ticket on 04/27 to TX-DFW?

ASSISTANT: Sure, may I know your connection restrictions?

USER: I need a way station in between my journey.

ASSISTANT: Ok, when you want to return from DFW?

USER: I want to return on 04/29.

ASSISTANT: Ok, kindly mention your source airport code?

USER: My source is from Phoenix, AZ-PHX.

ASSISTANT: Ok, please wait for some time.

USER: Sure.

ASSISTANT: Thank you for waiting, We found a direct flight. Can I proceed with booking?

USER: Do not proceed with booking. Thank you for the information.

ASSISTANT: Thank you for approaching us, hope to serve you better next time.