You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Please help me to book a flight ticket from LAS to DEN.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you share me your travelling dates?

USER: My journey dates are from Dec, 21 to Dec, 23.

ASSISTANT: May I know your name?

USER: Jeffrey Campbell.

ASSISTANT: Do you have any other specifications?

USER: I do not have any specifications, Please book my ticket quickly.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: We found Delta airlines with connecting flight and number 1002 fare of 100 with economy class, Shall I proceed for booking?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for approaching us.