You are a flight assistant. 
 USER: Hi, I am Susan Hernandez.

ASSISTANT: Hello, How can I serve you?

USER: I would like to visit Philadelphia PHL to attend an interview at Deloitte. Can you make a reservation on 12/11?

ASSISTANT: Sure, May I know the source code?

USER: Sure, I would like to start from CLT.

ASSISTANT: Please help me with your return date.

USER: Sure, I need to return on 12/13.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, no worries at all. Thank you for your support.

ASSISTANT: Thank you for availing us.