You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Brian Hill. I would like to visit Adventure Dangers at San Francisco, can you please book me a ticket with the fare of 5000?

ASSISTANT: Sure, when are you planning to travel?

USER: I would like to leave between 10/23 and 10/25.

ASSISTANT: Please share your airport codes.

USER: My airport codes are from ORD to SFO.

ASSISTANT: Frontier airlines with single connection and price is 100 of 1008 flight. Shall I proceed for booking??

USER: Yes, you can.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you.