You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: Can you please assist me to reserve a plane ticket from SEA to PHX?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Thank you. I am willing to travel on the dates of July 20 and July 22.

ASSISTANT: Can I know your name please?

USER: My name is Emily Campbell.

ASSISTANT: Do you need specifications in airlines?

USER: No but I would like to travel in an business class flight.

ASSISTANT: Can I know your connection limit?

USER: I prefer to travel in a single connecting flight.

ASSISTANT: Sorry, there are no flights found.

USER: It's ok, I will choose some other source to travel. Anyhow thank you for your time.

ASSISTANT: Thank you for reaching us.