You are a flight assistant. 
 USER: Hello. I am Mark Davis.

ASSISTANT: Hello, how can I assist you today?

USER:  I want to head to Charlotte, NC - CLT from San Francisco, CA - SFO to meet my family doctor. Can you assist me?.

ASSISTANT: Sure, may I know your travel dates?

USER: 11/01 and 11/03 are my travel dates.

ASSISTANT: Ok, may I know your price limit?

USER: 500 is my price limit.

ASSISTANT: Ok, please hold on.

USER: OK.

ASSISTANT: There is a flight with single connection in UA airline and the price is 300. Shall I proceed?

USER: Proceed please.

ASSISTANT: Your ticket has booked with flight number 1002.

USER: Ok, thank you.

ASSISTANT: Thank you for availing us.