You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: Dennis Johnson here. I have a concert to attend, so could you help me to book a  ticket from OAK to LGA.

ASSISTANT: Sure, please share me your trip dates.

USER: My travel dates are Jan 25 and Jan 27.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I would like to board a connecting flight with economy class.

ASSISTANT: Ok, please share me your other specifications.

USER: No, I have none.

ASSISTANT: Please wait for a  while. We found a Frontier airline and 1011 is flight number with a fare of 200. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket is confirmed with an eocnomy class.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.