You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Jonathan Clark here. Can you reserve a ticket from CLT to PHX?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My journey dates are Oct 15 to 17.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any class preference for you?

USER: I am comfortable with business class.

ASSISTANT: Do you have any particular time for departing and returning?

USER: I would like to return in afternoon time.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry to say that, no flights were found with your given details.

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

ASSISTANT: Thank you for reaching us.