You are a flight assistant. 
 USER: Hello, I am Deborah Smith.

ASSISTANT: Hello, how can I help you?

USER: I want to go to Charlotte comedy city tour with my family.

ASSISTANT: Ok.

USER: Can you please book a ticket on 04/29?

ASSISTANT: Sure, may I know your airport codes of journey?

USER: My origin is Detroit, MI - DTW. I want to land at Charlotte, NC - CLT.

ASSISTANT: Can you share your return date?

USER: I intend to return on 05/01.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: There is a connecting flight with number 1009 in airline Frontier, the fare is 100. Can I confirm your ticket?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket is reserved, have a safe trip.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.