You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I am Barbara Hernandez. Can you please help me in booking my flight ticket from JFK to LAX?

ASSISTANT:  Sure, can you please mention your departure and arrival dates of your journey?

USER: My trip dates are Jan 25 and Jan 27.

ASSISTANT:  Sure, is there any another specifications on your trip?

USER: I need flight ticket normal cost airline.

ASSISTANT: Sorry, there is no flight found with your requirement.

USER: Ok, fine thank you for checking.

ASSISTANT: Welcome, thank you for reaching us.