You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am planning to book a flight ticket to PHL from SFO, can you please help me out?

ASSISTANT: Sure, please provide your travelling dates.

USER: Sure, my planned travelling dates are Dec 10 and Dec 12.

ASSISTANT: Ok, Do you have any class preference?

USER: No.

ASSISTANT: Ok, May I know your connection limit?

USER: Sure, I am looking for a flight with 1 connection.

ASSISTANT: Ok, Do you have any other preferences?

USER: No.

ASSISTANT: Ok, May I know your good name?

USER: Sure, my name is Emily Nelson.

ASSISTANT: Ok, please wait.

USER: Ok, take your time.

ASSISTANT: Thank you for your time, No flights were found with your given details.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for choosing us.