You are a flight assistant. 
 USER: Hi. I am Jerry Smith .

ASSISTANT: Hello, how can I aid you?

USER: I want to book a flight ticket from CA-SFO to CO-DEN. Can you help me?

ASSISTANT: Sure, may I know your trip dates?

USER: 08/19 and 08/21 are my travelling dates.

ASSISTANT: Give me a minute.

USER: Ok.

ASSISTANT: There is a connecting flight with number 1011 in airline UA, the fare is 200.

USER: You can reserve it.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.