You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I help you?

USER: I am Michelle Phillips, I planned a trip to Frontier town at Phoenix with my friend and have some fun. Help me to book the flight with one connection.

ASSISTANT: sure, may I know your travelling dates?

USER: I will travel on 05/26 and return on 05/28.

ASSISTANT: Where are you planning to travel ?

USER: My destination is Phoenix, AZ-PHX and my source is Seattle, WA-SEA.

ASSISTANT: May I know your price limit?

USER: Please make sure that flight ticket should be under price of 500.

ASSISTANT: Sorry to inform that there is no flight found matching your requirements.

USER: Ok, thanks for your service.

ASSISTANT: Thank you for reaching us.