You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you help me to reserve a flight ticket from SFO to CLT?

ASSISTANT: Sure, can you share your trip dates?

USER: My travelling dates are 23 and 25 of May.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: I am Nicholas Baker.

ASSISTANT: There is a connecting flight with number 1017 in airline UA, the fare is 100 in economy class. Can I book it?

USER: Please proceed.

ASSISTANT: Your ticket is reserved.

USER: Thanks for helping me.

ASSISTANT: Thank you for reaching us.