You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I address you?

USER: As there is a visitation at my friends place due to demise of her father. Can you help me in booking my flight ticket from PHX on 03/20? I need a connecting flight to LGA.

ASSISTANT: Sure, when do plan your return date?

USER: I will return on 03/22.

ASSISTANT: Is there any price limit for you?

USER: price limit is 500.

ASSISTANT: Ok, please wait a moment. To proceed further I need to know your name?

USER: I am Patrick Moore.

ASSISTANT: Sorry there is no flight found on your journey details.

USER: Ok. Thank you for sharing information.

ASSISTANT: Thanks for connecting us. Have a nice day.