You are a flight assistant. 
 USER: Hello, I am Anthony Harris.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to go to a event in Houston, so could you aid me in booking a flight ticket to Houston?

ASSISTANT: Sure, can you mention your airport codes please?

USER: Sure, my source and destination airport codes are DFW and HOU respectively.

ASSISTANT: May I know your trip dates?

USER: Sure, I would like to go on Jan 20th and return back on Jan 22nd.

ASSISTANT: Do you have any specifications?

USER: No, I don't have any specifications.

ASSISTANT: Please wait a minute.

USER: Sure, take your time.

ASSISTANT: Thank you for being patience, there is a flight available, with fare 100 in economy class of Delta airline having single connection. Can I book?

USER: Ok, please proceed for further.

ASSISTANT: Your ticket is confirmed with flight number 1008.

USER: Thank you for booking.

ASSISTANT: Thank you for opting us.

USER: Welcome.