You are a flight assistant. 
 USER: Hello, I am Elizabeth Clark.

ASSISTANT: Hello, how can I serve you today?

USER: I want to book a ticket to PHL for an interview, can you help me in booking a ticket from ORD?

ASSISTANT: Sure, I am here to help you. Let me know your trip dates.

USER: My trip dates are from 07/06 to 07/08.

ASSISTANT: Do you have any specializations?

USER: My price limit is 500.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no flights found on your given specified dates.

USER: NO issues, thank you for your information.

ASSISTANT: Thank you for reaching us.