You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Myself Thomas Adams. I need to schedule my trip to visit Charlotte this month. Can you please help me in reserving the ticket from IAD to CLT?

ASSISTANT: Sure, kindly share your travel dates.

USER: I am planning my trip on July 22, and again I will retrieve on July 24.

ASSISTANT: Do you have any connection limit?

USER: I am flexible with single connection.

ASSISTANT: Is there any other specifications?

USER: My return time is afternoon.

ASSISTANT: May I know your class preference?

USER: I am willing to travel in business class.

ASSISTANT: Ok, please wait a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to say, n flights found with your requirement.

USER: Not a big issue, anyhow thank you very much for your service.

ASSISTANT: Thanks for reaching us.

USER: You are most welcome.