You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: I am Nicolas Carter. I have to attend a Live Concert at San Francisco, could you please help me with booking a flight ticket from PHX to SFO?

ASSISTANT: When you are willing to travel?

USER: I would like to depart on Feb 25th and return on Feb 27th.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: Do you have any other requirements?

USER: Make sure that my return time must be morning. And I need a connecting flight.

ASSISTANT: We found 1011 UA airlines with single connection with economy class and arrival time is 07:00 AM.

USER: Please confirm the booking.

ASSISTANT: Your, ticket has been confirmed.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for reaching us.