You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I have planned to go for long trip to Denver, DEN with my friends. Can you please book a ticket on July 19?

ASSISTANT: Sure, we are glad to help you for booking. Let me know your boarding point.

USER: My boarding airport is Chicago, ORD.

ASSISTANT: Sure, Is there any class preference?

USER: No.

ASSISTANT: Ok, please share your airline preference.

USER: I don't have any airline preference.

ASSISTANT: Do you need a direct flight or connected flight?

USER: I usually prefer a connecting flight.

ASSISTANT: To proceed further, may I know your name?

USER: Sure, I am Nancy Davis.

ASSISTANT: Thanks for your details, please wait.

USER: Ok.

ASSISTANT: Thanks for your time, we found a flight in Hawaiian airline and the cost is 200 with single connection. Can I proceed for booking?

USER: Ok, please confirm.

ASSISTANT: Sure, your flight number is 1023 and depart time is 4:00 AM and arrival time is 7:00 AM in economy class.

USER: Thanks for booking.

ASSISTANT: Thank you for consulting our service.