You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I need to book a flight ticket to HOU from IAD to attend my friend's wedding. Can you assist me in booking it?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, my travel dates are Sep 23 and Sep 25.

ASSISTANT: Please share me your name.

USER: Yes, my name is Paul Green.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: Flight-1021 is available with Frontier airlines having single connection and the ticket costs you 200 only in economy class. Are you comfortable with this flight?

USER: Yes, I am comfortable with the flight which you have mentioned above go ahead with the booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for booking my flight ticket with the flight 1021.

ASSISTANT: Thank you.