You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me in booking from DEN to OAK?

ASSISTANT: Sure, please share your planned trip dates?

USER: My travelling dates are from Dec 5 to Dec 7.

ASSISTANT: Let me know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Any other preferences?

USER: I prefer normal-cost.

ASSISTANT: Can I have your name please?

USER: My name is Matthew Nelson.

ASSISTANT: United airlines flight- 1003 of price 200 with connection-1 in economy class matches your given details, shall I proceed?

USER: Ok, proceed.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.