You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I have planned to spend my vacation in Dallas. Please help me by booking a flight ticket to reach there.

ASSISTANT: Sure, can you specify your trip source and destination?

USER: PHX and DFW are the respective airport codes.

ASSISTANT: Can you share your travel dates?

USER: December 17 and 19 are my planned travelling dates.

ASSISTANT: Do you need any connections?

USER: I need a break in my journey.

ASSISTANT: Are there any other specifications?

USER: Nothing much to state.

ASSISTANT: May I know your name?

USER: My name is Margaret Green.

ASSISTANT: Connecting flight number 1027 with price 100 in economy class is available. Is it ok for you?

USER: Yes, I feel its good to fly.

ASSISTANT: Your ticket has been booked.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.