You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning for a round trip with my family members for site seeing in Dallas & Forth Worth DFW. Can you help me with booking?

ASSISTANT: Sure, please share me your planned journey dates?

USER: My journey dates are 03/17 and 03/19.

ASSISTANT: May I know your source airport code?

USER: My takeoff airport code is  Dallas & Forth Worth DFW.

ASSISTANT: Do you want any connection in between your flight journey?

USER: Yes, I need a lay by in between my journey.

ASSISTANT: Thank you for the details, I found a connecting flight 1004 of airline Delta and fare is 100. Shall I proceed with booking?

USER: That's prefect, please confirm it.

ASSISTANT: May I know your good name?

USER: I am Sandra Baker.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for visiting us, have a nice journey.