You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I am planning to book a ticket from CLT to HOU. Can you please help me out?

ASSISTANT: Can you please share your preferable journey dates?

USER: I am planning to travel on Nov 24 and return back on Nov 26.

ASSISTANT: Do you have any specifications?

USER: I am looking for a connecting flight.

ASSISTANT: May I know your name please?

USER: My name is Andrew Garcia.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you.