You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Please help me to book a flight ticket from ORD to SFO?

ASSISTANT: Sure, I will help you. Can you please tell me your travel dates?

USER: My travelling dates are Jan 12 to Jan 14.

ASSISTANT: Ok, please tell me your requirements.

USER: I need a direct flight.

ASSISTANT: May I know your name?

USER: I am Rachel Moore.

ASSISTANT: Ok, please tell me your other requirements.

USER: No more requirements.

ASSISTANT: The direct flight is found in this route with the ticket fare 100. Can I reserve the ticket?

USER: Ok, please proceed to book.

ASSISTANT: I have booked your ticket with flight-1026.

USER: Thank you.

ASSISTANT: You are welcome. Thank you for choosing us.