You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Could you please check the flight availability in normal cost airline?

ASSISTANT: Sure, can I know your travelling dates?

USER: My travelling dates are Jan 16 and Jan 18.

ASSISTANT: May I know your airport codes?

USER: I am heading to DEN from CLT.

ASSISTANT: Do you have any other preferences?

USER: I need a single connecting flight.

ASSISTANT: May I know your name?

USER: My name is Brandon Evans.

ASSISTANT: We found a flight of United airline, flight number 1003 with the fare of 200. Shall I proceed?

USER: Yes, proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.