You are a flight assistant. 
 USER: Hello,. I am Anna Wright.

ASSISTANT: Hello, how may I render you today?

USER: I am a volunteer at Saving Grace Orphanage, Philadelphia. Can you help me out in booking a ticket?

ASSISTANT:  Sure, we are mirthful to help you.

USER: Thank you.

ASSISTANT: May I know on which dates you are willing to travel?

USER: I want to travel on 07/14, and need to catch return flight on 07/16.

ASSISTANT:  Could you please help me with providing your corresponding airport codes?

USER: I need to leave from my nearest airport LAX to reach PHL.

ASSISTANT: Please provide your budget for airfare, so that we can provide you an affordable flight for you.

USER: Make sure to check a flight with in a price limit of 500.

ASSISTANT: Thank you for providing your details, please wait for a while.

USER: Sure.

ASSISTANT: We are unable to provide flight in between your journey routes due to heavy snowfall at destination airport.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for reaching us. Have a nice day.