You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How can I assist you?

USER: My name is Mark Phillips. I need to attend a memorial service of my grandad at Houston TX -HOU on 05/24. Can you help me with that?

ASSISTANT: Sure,may I know your source code and return day?

USER: Sure, I want to depart from PA - PHL,  and my return date is on 05/26.

ASSISTANT: Ok, please wait I will check and get back o you.

USER: Sure.

ASSISTANT: Thank you for being so patience. Here are the details, flight number is 1002, airline:AA, fare limit is 100 and single connection.

USER: Ok, please book a seat for me.

ASSISTANT: Ok. Your ticket is confirmed. Thank you for choosing us. Have a safe journey.

USER: Thanks for your assistance.