You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am Kenneth Perez. I would like to go to shopping in Ferry building market place at San Francisco, which is famous for summer wear. Can you please help me with booking a connecting flight?

ASSISTANT: Sure, may I know when are you willing to travel?

USER: I have planned to go on 05/09 and return back on 05/11.

ASSISTANT: Kindly share your airport codes.

USER: I want to fly from DEN to SFO.

ASSISTANT: Ok, please wait. Thanks for sharing your details, we are unable to provide flight in between your journey routes due to heavy snowfall at destination airport.

USER: No issue, thank you.

ASSISTANT: Thank you for opting us.