You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Can you please reserve me a flight ticket from DEN to OAK?

ASSISTANT: Can you share me your trip dates?

USER: My trip dates are 02/25 - 02/27.

ASSISTANT: Do you need any preferences?

USER: I need a single connection.

ASSISTANT: Are there any other specifications?

USER: No.

ASSISTANT: may I know your name?

USER: Jason Thomas here.

ASSISTANT: Connecting flight number 1000 with price 100 in economy class is available. Is it ok for you?

USER: Please reserve.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.