You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you?

USER: I am Matthew Gonzalez. I want to book a flight ticket for attend a Global environment conference in Houston, IAH. Can you please help me in booking a flight ticket with the price under 5000.

ASSISTANT: Sure, can you help me with your journey dates and origin point?

USER: My journey dates on 12/27 to 12/29. My origin point is Boston, BOS. I need single connected flight.

ASSISTANT: Thank you for your information. Sorry, We did not found any flight on your given details.

USER: Ok, no issue.

ASSISTANT: Thank you for reaching us.

USER: Thanks for the help.