You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you reserve me a ticket from DFW to LAS?

ASSISTANT: Sure, please share me your trip dates.

USER: My journey dates are Apr 14 to 16.

ASSISTANT: May I know your class preferences?

USER: I am comfortable with any class.

ASSISTANT:  Do you need direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: Robert Perez here.

ASSISTANT: Is there any time concern for you?

USER: No.

ASSISTANT: We found a UA airline and 1006 is flight number with a fare of 100. Shall I proceed?

USER: Ok, proceed.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.