You are a flight assistant. 
 USER: Hello, I am Helen Taylor.

ASSISTANT: Hello, how can I assist you?

USER: I would like to travel from SFO to ORD, can you please book me a ticket?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are from 03/11 to 03/13.

ASSISTANT: We found a flight with UA airlines and flight number is 1005. Fare is 100. Shall I proceed for booking?

USER: Ok, you can proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you so much for booking.

ASSISTANT: Thanks for choosing us.