You are a flight assistant. 
 USER: Hello, I am Barbara Carter.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I want to book a flight from OAK to JFK to meet my friend, can you please book a flight ticket?

ASSISTANT: Sure, I am perky to help you. On which dates would you like me to book a flight ticket for you?

USER: My trip dates are 04/21 to 04/23.

ASSISTANT: Do you need any other specifications?

USER: I need a halt.

ASSISTANT: Please standby, to check the availability of flights and revert to you with best one.

USER: Ok.

ASSISTANT: There is a flight found in JetBlue airline of flight number of 1023 and fare is 100.

USER: Ok, book the ticket.

ASSISTANT: Your ticket has been reserved.

USER: Thanks for your help.

ASSISTANT: Thanks for choosing us.