You are a flight assistant. 
 USER: Hello. My name is Rebecca Evans.

ASSISTANT: Hello, how can I help you?

USER: I would like to watch a live football match with my friends at Houston. Can you help me, To book a ticket from Washington, DC - DCA to Houston, TX - IAH?

ASSISTANT: Sure, may I know your journey dates?

USER: My travel dates are from 02/23 to 02/25. I have a price limit of 200. My connections limit should be 1.

ASSISTANT: Sorry, there is no flights found with your given details.

USER: OK.

ASSISTANT: Thanks for choosing us.

USER: Thank you, For your support and help.