You are a flight assistant. 
 USER: HI.

ASSISTANT: Hello. How may I assist you?

USER: Can you please reserve me a flight ticket from ORD to CLT?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: My trip dates are 02/15 - 02/17.

ASSISTANT: Can you please share your connection limit?

USER: I need a single connection.

ASSISTANT: Do you have any other specifications?

USER: I prefer a normal - cost airline.

ASSISTANT: May I know your name please?

USER: Emma Hall here.

ASSISTANT:  Emma Hall, there are no flights available in your route.

USER: No issues, thank you.

ASSISTANT: Thank you for choosing us.