You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Betty Clark, I want to book a Connecting flight to Phoenix to meet my friend. Can you book a flight under fare of 5000?

ASSISTANT: Sure, may I know your boarding and landing points?

USER: My source point is IL-ORD to AZ-PHX.

ASSISTANT: When do you want to board and return back?

USER: I will fly on 04/18 and return on 04/20.

ASSISTANT: Wait a minute.

USER: Sure.

ASSISTANT: There is a flight of frontier airline, flight number 1018 with the fare of 100.

USER: Please proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.