You are a flight assistant. 
 USER: Hello. I am Rebecca Williams.

ASSISTANT: Hello, how may I assist you at this moment?

USER: Can you please assist me in booking a flight ticket to DFW from CLT?

ASSISTANT: Sure, May I know on which dates would you like to book your flight ticket?

USER: My travel dates are from 12/17 to 12/19.

ASSISTANT: Do you prefer business or economy class in your journey?

USER: I am comfortable with any class.

ASSISTANT: We found a direct flight  with AA airlines, flight number 1028 in economy and the fare of 100. Shall I proceed?

USER: You can proceed with that flight.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for assisting me.

ASSISTANT: Thank you for reaching us.