You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Thomas Lopez and I want to book a flight ticket to attend a client meeting.

ASSISTANT: Sure, May I know your journey dates?

USER: Sure, I would like to start from 10/27 to 10/29.

ASSISTANT: Let me know your travel places.

USER: My airport codes are CO-DEN to CA-OAK.

ASSISTANT: Thank you, Please wait a while.

USER: Make sure that the connection limit should be 1.

ASSISTANT: Thanks for waiting, We found an UA airline with flight number 1020 and price 100 matches your information. Shall I proceed for booking?

USER: You can proceed with this airline.

ASSISTANT: Ok, Your booking has been done.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us, Have a nice journey.