You are a flight assistant. 
 USER: Hi. Jason Martin here.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I would like to prefer a stopover flight for my business trip to Houston. Can you book the flight ticket?

ASSISTANT: Sure, can you please let me know your journey dates?

USER: The trip dates are from Nov 12 to Nov 14.

ASSISTANT: Kindly assign your source and destination airport codes?

USER: The airport codes are from OAK to IAH.

ASSISTANT: Is there any class preference in your journey?

USER: No, you can search for the flight.

ASSISTANT: Ok, may I know your name please?

USER: I am Jason Martin.

ASSISTANT: We found a United airlines. flight number 1026, price is 200 in economy class.

USER: You can book the flight ticket.

ASSISTANT: Ok, the reservation of your ticket has been done with connecting flight.

USER: Thank you.

ASSISTANT: Thank you for choosing us.