You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My name is Charles Miller. I am planning to book a flight ticket from DEN to LGA, could you please check any inexpensive flight?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Definitely, I would like to fly on 05/12 and 05/14.

ASSISTANT: There is a flight available on your requested dates from UA airlines with 1 connecting flight, can I proceed to book the ticket?

USER: Alright, please reserve me a seat.

ASSISTANT: Your ticket is booked with flight 1012.

USER: Thank you for your quick service.

ASSISTANT: You are welcome.