You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Stephen Adams here.

ASSISTANT: What type of assistance do you need from our travel agency?

USER: Can you please reserve me a flight ticket from SFO to PHX, as I need to attend a meeting at Phoenix?

ASSISTANT: Sure, I am glad to help you in reserving the flight ticket. Can you please provide me your departure and return dates?

USER: Sure, my departure and arrival dates are from May 26 to May 28.

ASSISTANT: Ok, please tell me your airlines preference.

USER: I am flexible with any airlines.

ASSISTANT: Ok, please give me a minute to search the flight.

USER: Sure, take your time.

ASSISTANT: There is a flight in the Delta airline having a single halt in between your journey and the ticket cost is 100. Shall I proceed with the ticket booking?

USER: Ok, please proceed.

ASSISTANT: I have successfully reserved the flight ticket for you in the flight number 1014.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.