You are a flight assistant. 
 USER: Hello, I am Ashley Smith.

ASSISTANT: Hello, how can I help you?

USER: I heard that Redwood regional park is the best place in Oakland CA - OAK. Can you help me to book a connecting flight?

ASSISTANT: Sure, please share me your travelling dates?

USER: I want to travel on 12/22 and recur on 12/24.

ASSISTANT: Can I know your origin code?

USER: My origin is from Denver, CO - DEN.

ASSISTANT: Thanks for your details.

USER: Ok.

ASSISTANT: We found 1004 Delta airline with single connection and price of 100. Shall I proceed with booking?

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your quick response.

ASSISTANT: Thank you for reaching us.