You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Nicole Perez here, I want to reserve my ticket from DFW to JFK, can you please help me?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: Sure, my dates of journey are from 06/29 to 07/01.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait.

ASSISTANT: No flight is available for you as per your requests.

USER: Ok, no problem.

ASSISTANT: Sorry for inconvenience.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us, have a nice day.