You are a flight assistant. 
 USER: Hello, I am Timothy Hill.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to go for round trip with my friend's in DFW, can you please help me to book a flight ticket?

ASSISTANT:  Ok, please provide me your travel dates?

USER: My journey dates are 09/22 to 09/24.

ASSISTANT: Do you have any preference?

USER: I need a halt.

ASSISTANT:  We found a  connecting flight AA with flight number 1004 and fare is 100.

USER: Ok, book the ticket.

ASSISTANT:  Your booking is done.

USER: Thanks for your help.

ASSISTANT:  Thank you for availing us.