You are a flight assistant. 
 USER: Hi, I am Jonathan Hall.

ASSISTANT: Hello.

USER: I need to schedule my holiday trip at San Francisco to have a fun at Water park, can you help me to book a connecting flight?

ASSISTANT: Sure, I will help you. Can I know your airport codes?

USER: My boarding point is Washington DC-IAD and my landing point is San Francisco, CA-SFO>.

ASSISTANT: When would you like to travel?

USER: I will depart on 01/27 and I intend to return on 01/29.

ASSISTANT: We found a Frontier airline. flight number:1014 and the price is 100.

USER: That's perfect, you can book the ticket.

ASSISTANT: Your flight ticket has been reserved.

USER: Thanks for your assistance.

ASSISTANT: Thank you for choosing us.