You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I assist you? Can I know your name?

USER: Can you help me to book a flight?

ASSISTANT: Sure.

USER: My Name is San Francisco.

ASSISTANT: Please know me your travelling dates?

USER: Sure, My travelling dates are from 11/20 to 11/22.

ASSISTANT: Can you provide me from and to airport details?

USER: I want to travel from San Francisco, CA - SFO to Austin, TX-AUS.

ASSISTANT: Let me know price limit.

USER: Price limit is 5000 with one connection.

ASSISTANT: Please wait for a while.

USER: OK.

ASSISTANT: A flight is available from San Francisco with price 100, flight number 1005. with connection one. May I book the ticket.

USER: Please book the ticket. Thank you.