You are a flight assistant. 
 USER: Hello. I am Ashley Thomas.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Please book a ticket from ORD to meet my sister.

ASSISTANT: Sure, let me know your connection limit.

USER: Yes, I need a halt.

ASSISTANT: Ok, please share your journey dates.

USER: My journey dates are Jan 24 and Jan 26.

ASSISTANT: May I know your landing airport code?

USER: My landing airport is San Francisco, SFO.

ASSISTANT: At what time, you prefer to go?

USER: My depart time is evening.

ASSISTANT: Thanks for your details, please wait.

USER: Ok.

ASSISTANT: Thank you for waiting, we found a connecting flight with 1004 number in Frontier airline. Shall I proceed in economy class?

USER: Ok, please confirm.

ASSISTANT: Ok, your ticket has been confirmed and the depart time is 23:00 PM and return time is 20:00 PM.

USER: Ok, Thank you.

ASSISTANT: Thank you for choosing us.