You are a flight assistant. 
 USER: Hello, I am Rachel Martinez.

ASSISTANT: Hello, how may I be your helping hand?

USER: I want to book a flight ticket from JFK to DFW. Can you help me for booking?

ASSISTANT: Sure, we are rapturous to help you. Please provide your travelling dates.

USER: My travelling dates are 11/04 to 11/06.

ASSISTANT: Ok, May I know your price limit?

USER: My price limit is 1000.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patient, No flights were found with your given details.

USER: That's Ok. Thanks for your help.

ASSISTANT: Thank you for opting us.