You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What help do you need from our agency?

USER: I need to book a flight ticket from SEA to PHX, Can you please help me for booking?

ASSISTANT: Sure, I am here to help you. Can I know your travel dates please?

USER: I would like to travel on 06/07 to return on 06/09.

ASSISTANT: Ok, please tell me your name.

USER: Katherine Perez here.

ASSISTANT: Ok, can I know your airlines preference?

USER: I am comfortable with any preferences.

ASSISTANT: Ok, do you have any connection limit preference?

USER: I need a connecting flight.

ASSISTANT: Ok, please give me a minute. In the meanwhile, tell me your other requirements if any?

USER: Sure.

ASSISTANT: I regret to inform you that, there is no flight available in this route with the dates you have given.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: You are most welcome. Thank you for choosing us.