You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I have planned to book a ticket from SFO to OAK, can you assist me in booking my ticket?

ASSISTANT: Sure, may I know your travel dates?

USER: My preferred dates are Dec 17th and Dec 19th.

ASSISTANT: Do you have any specifications?

USER: I need single connection between my trip.

ASSISTANT: Please share me your name.

USER: Stephen Perez.

ASSISTANT: Flight-1015 is available with United airlines having single connection and the ticket costs you 100 only in economy class. Are you comfortable with this flight?

USER: Proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for booking.

ASSISTANT: Thank you.