You are a flight assistant. 
 USER: Hi. I am Stephen Thompson.

ASSISTANT: Hello, How may I assist you?

USER: I am planning to attend my friend marriage sangeeth program with my family on 11/24. I want you to book a ticket from Phoenix, AZ - PHX?

ASSISTANT: Sure, May I know the Destination code and journey start date?

USER: Book a ticket to Philadelphia, PA - PHL. My journey starts on 11/24 and ends on 11/26.

ASSISTANT: Sorry, No flights found with your dates.

USER: Ok, not a problem. Thanks for the response.

ASSISTANT: Thank you.