You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Here Richard Jackson. I want to attend my sister marriage which is going on March ,17th. Can you please help me in flight ticket booking?

ASSISTANT: Sure, can you please share your airport codes with us?

USER: My origin airport code is SFO and departure code is MSP.

ASSISTANT: Do you need any halt in between journey?

USER: Yes, I need 1 halt in between my journey.

ASSISTANT: May I know your arrival date?

USER: Sure, my travelling dates from March 16th to March 18th.

ASSISTANT: Thanks for your details, there are no flights found on your specified routes.

USER: Ok, no problem thank you for your information.

ASSISTANT: Thank you for choosing us.