You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Rachel Rodriguez here. I need to reserve a ticket from CLT to MSP, can you help me in doing that?

ASSISTANT: Sure, I can do that for you. Please let me know your travel dates.

USER: My trip dates are May 22 to 24.

ASSISTANT: Ok, may I know your specifications?

USER: I need a connecting flight which returns in evening time.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there is no flight available as per your requirements.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: You are welcome and thank you for choosing us.