You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: I am Joseph Perez. Please help me in booking a flight ticket with fare 1000 as I have to travel to Houston, HOU to meet my friend.

ASSISTANT: Sure, May I know the destination code?

USER: I have already provided. My source code is New York, LGA.

ASSISTANT: Please help me with your travel dates.

USER: My journey dates are from 04/05 to 04/07.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: It's ok. Thank you for the information.

ASSISTANT: Thank you for reaching us.