You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you the best today?

USER: I want to book a ticket from CLT to IAH. Could you book a ticket?

ASSISTANT: Sure, can I know your good name please?

USER: My name is Larry Smith.

ASSISTANT:  When you are willing to travel?

USER: Depart is on Apr, 10 and return date is Apr, 12.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I would be comfortable with single stop over.

ASSISTANT:  Would you let us know if you have any other preferences?

USER: I prefer economy class.

ASSISTANT: Thank you for waiting and we have found a flight in an economy class with 1 connection in Frontier airlines and the fare of your flight will be 100. Do you like me to proceed your booking with this flight?

USER: Please book a ticket.

ASSISTANT: Your booking is done with flight number 1015.

USER: Thank you.

ASSISTANT: Thank you for opting us.