You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I would like to travel from DEN to PHL, can you please help me in flight booking?

ASSISTANT: Sure, may I know your good name?

USER: My name is Mary Walker.

ASSISTANT: On which dates you have planned to travel?

USER: I want to fly on Oct 29, return on Oct 31.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: Is there any other preferences?

USER: No.

ASSISTANT: We found a Frontier airline with flight number 1012 and fare of 100 and class is economy with one connection. Shall I proceed?

USER: Ok, proceed to booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for availing us.