You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jack Lee here.

ASSISTANT: How can I aid you?

USER: I want to attend a Seminar in Oakland. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, May I know your travelling dates?

USER: My travelling dates are 12/22 and 12/24.

ASSISTANT: Can you share me your airport codes?

USER: My airport codes are EWR and OAK.

ASSISTANT: Do you have any preferences?

USER: I would prefer single halt.

ASSISTANT: You have a flight 1024 in Frontier airline and price 100 with a connection, Shall I proceed?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Your ticket has been booked.

USER: Thanks for helping me.

ASSISTANT: Thank you.