You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Please, reserve me a connecting flight to PHX.

ASSISTANT: Sure, may I know your travel dates?

USER: I will start on May 20th and return on May 22nd.

ASSISTANT: Ok, from where you want to board?

USER: I want to board from DEN.

ASSISTANT: Can I have your name for further process?

USER: Richard Jackson here.

ASSISTANT: We found a connecting flight in an economy class with flight number 1008. Shall I proceed?

USER: Yes, proceed with my booking.

ASSISTANT: Your flight ticket has been reserved with United airlines.

USER: Thank you for helping me.

ASSISTANT: Thanks for choosing us.