You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: Please book a ticket from New York, LGA to participate in Olympics.

ASSISTANT: Sure, I am here to help you. When you are willing to travel?

USER: My travelling dates are Dec 15 and Dec 17.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Can you help me with your destination airport code?

USER: My destination is Oakland, OAK.

ASSISTANT: Do you have any other requirements?

USER: My depart time is morning.

ASSISTANT: May I know your good name?

USER: Sure, I am Catherine Adams.

ASSISTANT: Do you have any connection limit?

USER: Yes, I want one connection.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: We found 1027 Delta airlines with single connection with economy class and depart time is 18:00 PM. Shall I proceed with the booking?

USER: No, my depart time is morning. Thank you.

ASSISTANT: Thank you for reaching us.