You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I am Sandra Roberts from Philadelphia. I want to go New York next week for my film shooting purpose, can you please book a flight ticket for me?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Can I have your travelling dates?

USER: I want to take off on 11/24 and book my return ticket also on 11/26.

ASSISTANT: Sure, could you provide me your exact airport codes?

USER: I want to fly from PHL and destination airport is JFK.

ASSISTANT: Sorry for the inconvenience, there are no flight's available  based on your travelling dates.

USER: Oh! It's ok no problem, I will go with another airline service. Thank you for your service.

ASSISTANT: Thank you for approaching us.