You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you help me to book a connecting flight from CLT to DCA?

ASSISTANT: Sure, can you share your journey dates?

USER: My travelling dates are 07 and 09 of Oct.

ASSISTANT: Do you have any preferences?

USER: My airline preference is normal cost.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: May I know your name?

USER: I am Alexander Green.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: It's ok, not a problem, thank you.

ASSISTANT: Thank you for reaching us.