You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you reserve me a ticket from DCA to PHX?

ASSISTANT: Sure, may I know your planned journey dates please?

USER: My trip dates are Oct 26 to 28.

ASSISTANT: Can I have your name please?

USER: I am Nancy Jackson.

ASSISTANT: Do you need a connecting flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I need business class with normal-cost.

ASSISTANT: Nancy Jackson, no flights has been found on your specifications.

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

ASSISTANT: Thank you for reaching us.