You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you at this moment?

USER: I am planning to go for PHL on 11/24. Can you please help me?

ASSISTANT: Yes, I am here to help you about it. Can you please help me with your source code?

USER: My source code is IAD.

ASSISTANT: Do you want to have a return journey? Please, mention it.

USER: Yes, I need my return ticket on date is 11/26.

ASSISTANT: UA airline is providing a flight with a single connected flight which costs 100. Shall I proceed?

USER: Ok, please proceed with Laura Moore name.

ASSISTANT: Your seat is reserved with flight 1004 in economy class.

USER: Thank you.

ASSISTANT: Most welcome. Have a safe journey.