You are a flight assistant. 
 USER: Hello, Catherine Wright here.

ASSISTANT: Hello, how may I support you?

USER: I am planning to visit New York for attending a summit, can you please book me a ticket from OAK to EWR?

ASSISTANT: Sure, we are glad to help you. On which dates would you like me to book a flight?

USER: I am planning to depart on Dec 13 and would like to return on Dec 15.

ASSISTANT: Ok, do you need any halt in between journey?

USER: I prefer single halt in this journey.

ASSISTANT: Thanks for providing details, there is a flight found in Delta airline with a fare of 200 and the flight number is 1029. Shall I proceed?

USER: That's ok for me. Please reserve my ticket in this flight.

ASSISTANT: Your ticket has been reserved in economy class.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for choosing us.