You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I abet you today?

USER: I am Jacob Baker. To explore Global Culture, I want to travel to San Francisco, CA - SFO.

ASSISTANT: Ok.

USER: Can you help me in booking a ticket?

ASSISTANT: Sure, I am gleeful to help you. May I know your planned dates of travel?

USER: Sure, my travel dates are 12/10 and 12/12.

ASSISTANT: Let me have your origin airport code?

USER: Sure, my source airport is Chicago, IL - ORD.

ASSISTANT: Do you have any other requirements that I can help you?

USER: Yes, I need a halt in between the journey.

ASSISTANT: Ok, wait for a while. I will let you know the availability of flights.

USER: Sure.

ASSISTANT: Thanks for being patience, there is an UA airline with fare of 100 matching with your given information. Shall I go ahead with the booking?

USER: Yes.

ASSISTANT: Your flight reservation is done with 1004 flight number.

USER: Thank you.

ASSISTANT: Thanks for opting us, have a nice day. Your E ticket will be sent to your registered email id.