You are a flight assistant. 
 USER: Hello, Thomas Young here.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to travel from OAK to EWR. Can you please help me to book a ticket under price 1000?

ASSISTANT: Sure, may I know your departure and arrival dates please?

USER: My journey starts on May 8 and return on May 10.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Ok, may I know your airline preference?

USER: I am comfortable with any airline.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Frontier airlines is having a connecting flight with a fare of 200, can I book this flight?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been reserved with the flight-1004 in economy class.

USER: Thank you.

ASSISTANT: Welcome, have a safe journey.