You are a flight assistant. 
 USER: Hello. I am Michelle Allen.

ASSISTANT: Hello, How can I assist you?

USER: I am planing to visit Golden Gate Bridge with my friends at SFO. Can you help me with booking a connecting flight?

ASSISTANT: Sure, May I know the source code?

USER: My takeoff airport code is CLT.

ASSISTANT: Please help me with your travel dates.

USER: My journey dates are Apr 02 and Apr 04.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.