You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: I am planning to travel from DFW to DEN, help me in booking a flight?

ASSISTANT: Please share your journey dates.

USER: I like to travel on Mar 18 to 20.

ASSISTANT: Do you need any connection limit?

USER: I prefer to travel on single connection flight.

ASSISTANT: Can I know your preferable timings?

USER: I don't have any timings.

ASSISTANT: May I know your class preference?

USER: I don't have any class.

ASSISTANT: Do you need any specific airline?

USER: No.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: There is a connecting flight in economy class with Spirit Airlines and ticket fare of 100. Shall I proceed?

USER: Proceed for booking.

ASSISTANT: Your ticket is confirmed with flight 1012.

USER: Thank you.

ASSISTANT: May I know your name for documentation purpose?

USER: I am Gary Clark.

ASSISTANT: Thank you for opting us.