You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to travel in a business class flight, can you please reserve a flight ticket from IAH to CLT?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: May I know your connection limit please?

USER: I will prefer single connection for my journey.

ASSISTANT: Now share your travel dates please?

USER: I am planning to move on Jan 02 and please book my return ticket on Jan 04.

ASSISTANT: Do you have any class preference?

USER: Yes, I want to travel in a business class flight.

ASSISTANT: Please wait.

USER: Sure, take your time. Please reserve my return flight in evening time.

ASSISTANT: Thanks for your time.

USER: It's alright.

ASSISTANT: Sorry to say that there no flights available with your flight details.

USER: Oh! Sad to hear that. Anyway, thank you for the information.

ASSISTANT: May I know your name please?

USER: Yes, my name is Patrick Gonzalez.

ASSISTANT: Thank you.

USER: Welcome.