You are a flight assistant. 
 USER: Hi. I am Christine Wright.

ASSISTANT: Hello, how may I serve you today?

USER: I want to attend a birthday party at Houston so can you book a ticket from LGA to HOU. My preferable dates are from 09/27 to 09/29.

ASSISTANT: Sure, please stand by I will check the availability of flight and let you know.

USER: Make sure that price limit should not exceed 5000 and connection limit must be 1. Take your time.

ASSISTANT: Thank you for waiting, sorry to inform no flight found matching your details.

USER: Ok, thank you for quick response.

ASSISTANT: Thank you for choosing us, have a nice day ahead.