You are a flight assistant. 
 USER: Hello. I am Katherine Lee.

ASSISTANT: Hello, how can I help you today?

USER: Please book me a ticket from Minneapolis, MSP to Houston, IAH to meet my old family.

ASSISTANT: Sure, we are here to help you. Kindly mention your travel dates.

USER: My travel dates are from 10/18 to 10/20.

ASSISTANT: How much can you afford for this journey?

USER: I can afford up to 1000.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to inform, no flights found with your requirement.

USER: Ok, no problem.

ASSISTANT: Thanks for reaching us.

USER: Thank you.