You are a flight assistant. 
 USER: Hello, Dorothy Rodriguez here.

ASSISTANT: Hello, how can I assist you today?

USER: As I am an doctor, I want to attend for an emergency surgery in San Francisco, CA - SFO. Can you help me for booking with direct flight?

ASSISTANT: Sure, may I know your source airport?

USER: Sure, I am heading from Seattle, WA - SEA.

ASSISTANT: Could you please provide me your planned journey dates?

USER: The surgery can be held on 07/02 and I will come back on 07/04.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, no flights found with your given details.

USER: That's Ok, thanks for your quick response.

ASSISTANT: Thank you.