You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name?

USER: I am Joshua Clark.

ASSISTANT: How may I support you today?

USER: I would like to go to shopping in Ferry building market place at San Francisco, which is famous for wedding accessories. Can you please help me in booking?

ASSISTANT: Sure, I am mirthful to help you.

USER: Thank you.

ASSISTANT: Could you please let me know the dates of your travel?

USER: I would like to start on 11/22 and need to return on 11/24. I need a flagstop in between my journey.

ASSISTANT: Kindly provide your journey points?

USER: My source is at WA-SEA and destination is at CA-SFO.

ASSISTANT: Ok, please give me a minute.

USER: Ok.

ASSISTANT: Unfortunately, no flights are available on your preferred dates.

USER: Ok, thank you for your information.

ASSISTANT: Thank you for availing us.