You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Here Thomas Brown.

ASSISTANT: How can I aid you?

USER: I need a flight ticket booking from CLT to DFW to attend a meeting, can you book a flight ticket for me?

ASSISTANT: Sure, may I know your travel dates?

USER: Thank you and my travel dates are May 5th and 7th.

ASSISTANT: Do you have any preferences?

USER: I need a single halted flight.

ASSISTANT: Flight-1005 is available in Delta airlines with direct flight and the flight fare is 100. Can I proceed?

USER: Yes, you can go ahead and confirm my flight ticket booking.

ASSISTANT: Your booking is confirmed.

USER: Thank you for your kind help in my flight ticket booking.

ASSISTANT: Thank you for reaching us.