You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me to search a flight with 1 connection limit?

ASSISTANT: Sure, please provide your travelling dates.

USER: The travelling dates are 08/05 to 08/07.

ASSISTANT: And also let me know your locations too.

USER: The airport codes are from CO-DEN to CA-SFO.

ASSISTANT: Ok, may I know your name for further proceeding?

USER: Sure, my name is Ronald Adams.

ASSISTANT: Thanks for your details, there is no flight for you.

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

ASSISTANT: Ok, thanks for choosing us.