You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I support you?

USER: I would like to attend my family festival  so I want to go from JFK to PHL. Can you please help me to book a ticket?

ASSISTANT: Sure, please provide your journey dates.

USER: My journey dates are from 11/25 to 11/27.

ASSISTANT: Ok, May I know your name?

USER: My name is Raymond Allen.

ASSISTANT: Ok, please wait for a few seconds.

USER: Ok.

ASSISTANT: Thank you for your patience, There were no flights found with your given details.

USER: Ok, no problem. Thanks for your service.

ASSISTANT: Thank you for availing our service.