You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Andrew Davis.

ASSISTANT:   Andrew Davis, in what way shall I serve you?

USER:  I would like to participate in Multi-Car 50 mile Canyon Road Test Drive at Denver, CO - DEN.

ASSISTANT: Ok.

USER: Will you be my helping hand in making a reservation with flight having a single connection?

ASSISTANT: Sure, I will be your helping hand.

USER: Thank you.

ASSISTANT: When you are going to start your journey?

USER: I would like to depart on 05/22.

ASSISTANT: How much can you afford for your journey?

USER: Price must be under 500.

ASSISTANT: Your return date please?

USER: My return will be on 05/24.

ASSISTANT: From which place you are going to book a ticket?

USER: I will leave from my nearest airport Boston, BOS.

ASSISTANT: Thanks for your details.

USER: Ok.

ASSISTANT: Wait a while, I will revert you.

USER: Sure.

ASSISTANT: Thanks for being patience. I found a flight with 1 connection which suits your requirements. Airline: UA.

USER: Ok, you can confirm this ticket.

ASSISTANT: Your ticket is confirmed with 1013 flight of price 100.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.