You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning for a trip from SFO to DEN, for attending a function in my aunt's home.

ASSISTANT: Sure, On which dates would you like me to book a flight ticket for you?

USER: Ok, my trip dates are from Aug 21 to 23.

ASSISTANT: On what name, do I need to reserve your ticket?

USER: I need a flight in economy class with single connection. Sure, I am David Smith.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: We found 1015 AA airlines with single connection with economy class.

USER: Please proceed.

ASSISTANT: Your ticket has been reserved with price 100.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us.