You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Please help me to book a flight ticket from SFO to CLT.

ASSISTANT: Sure, I am here to help you for this. When are you planning your trip?

USER: My journey dates are from Mar, 30 to Apr, 01.

ASSISTANT: May I know your name please?

USER: Kimberly Wright.

ASSISTANT: Is there any connection limit?

USER: I need a  single connecting flight.

ASSISTANT: Do you have any other specifications regarding your journey?

USER: I prefer to depart in the evening.

ASSISTANT: Sorry for inconvenience, no flights are found with your specifications.

USER: Thank you for your information.

ASSISTANT: Thank you very much for approaching our agency.