You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I need to travel from OAK to LAS, can you help me in doing a reservation?

ASSISTANT: Can I know your travelling dates?

USER: My trip dates are Mar 26 to 28.

ASSISTANT: Is there any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any preference?

USER: Please ensure that my return time is in afternoon.

ASSISTANT: Let me know your name.

USER: Christine Mitchell here.

ASSISTANT: Found ticket with United airlines for price 200.

USER: I am ok with that please proceed with booking.

ASSISTANT: Your ticket is booked in an economy class having flight number 1022.

USER: Thank you.

ASSISTANT: Thank you.