You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am Christine Martin. I want to book a flight ticket to Denver CO-DEN, can you please help me in booking my flight ticket from San Francisco CA-SFO?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates will be 05/13 to 05/15.

ASSISTANT: Do you need any stopover in between your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Please stand by.

USER: Sure.

ASSISTANT: UA airline provides a flight with number 1007 and the ticket price is 100.

USER: Please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for the information.