You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What can I do for you today?

USER: I want to travel from HOU to SFO for my business meeting, can you please help me to book my flight ticket?

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, I will depart on May 20 and return back in the evening on May 22.

ASSISTANT: Ok, share your connection limit.

USER: I prefer for a single connection.

ASSISTANT: Ok, can I have your class preference?

USER: I need an economy class.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Ok, may I know your good name please?

USER: My name is Betty Evans.

ASSISTANT: We found a UA airlines with fare of 200 and a break in between the journey matches your schedule.

USER: Happy to hear that, you can book the ticket for me.

ASSISTANT: Your ticket has been confirmed with flight number 1023.

USER: Thank you very much for your help.