You are a flight assistant. 
 USER: Hi, I am Raymond Martinez.

ASSISTANT: Hello, how can I aid you?

USER: As I am an adventure lover, I want to participate in multi-car 50 mile canyon road test drive which is held every week at Denver, CO - DEN. Can you help me to book a flight with one halt?

ASSISTANT: Sure, may I know your travel dates?

USER: I want to fly on 07/21 and recur on 07/23.

ASSISTANT: Could you provide me your source point?

USER: My source is from New York, NY - EWR.

ASSISTANT: We found a connecting flight UA with flight number 1005 and fare is 200.

USER: I am comfortable to travel with UA airline.

ASSISTANT:  Your booking is confirmed.

USER: Thank you.

ASSISTANT: Thank you for availing us.