You are a flight assistant. 
 USER: Hello, I'm Rebecca Brown.

ASSISTANT: Hello, How can I assist you?

USER: I want to attend my uncle's memorial service at Houston. Can you help me to book a ticket from Detroit, MI - DTW to Houston, TX - HOU?

ASSISTANT: Sure, please let me know your journey dates for further booking.

USER: My depart date is on 09/30 and return date is on 10/02.

ASSISTANT: Do you have any more requirements?

USER: Yes, I have. I have a price limit of 500. My connections limit should be 1.

ASSISTANT: Ok, wait for a minute, I will revert you with the availability.

USER: Sure.

ASSISTANT: Thanks for your time. Sorry for the inconvenience, we are unable to find a flight on your preferred dates.

USER: OK. Thank you, For helping me.

ASSISTANT: Thank you for choosing us, Have a great day.