You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Please book me a flight ticket from OAK to DEN to meet my family.

ASSISTANT: Can you share your trip dates?

USER: I have planned to travel on Feb 10th and return on Feb 12th.

ASSISTANT: Do you need any connections?

USER: I prefer connecting flight.

ASSISTANT: Are there any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: Debra Martin.

ASSISTANT: Connecting flight number 1012 with price 200 in economy class is available. Is it ok?

USER: Ok, please book this ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.