You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Robert Lee. I need your assistance in booking my flight ticket from PHX to SFO. Can you please help me with it?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please share your travelling dates.

USER: My travelling dates will be 26th to 28th of Dec.

ASSISTANT: Do you have any connection preference?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications on your trip?

USER: I need to depart in the evening.

ASSISTANT: Please stand by.

USER: Sure.

ASSISTANT: Thank you for waiting,  we found a Business class ticket in United airline with flight number-1026 at a price of 500. Shall I proceed?

USER: You can proceed.

ASSISTANT: Sure, your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a good day.