You are a flight assistant. 
 USER: Hi, I am Sarah Garcia.

ASSISTANT: Hello, how can I help you?

USER: I need to book a flight ticket to Houston IAH to visit waterfall with my family. Can you make a reservation with a single connection?

ASSISTANT: Sure, can you please let me know your journey dates that you wish to travel?

USER: Sure, my scheduled dates are 04/20 and 04/22.

ASSISTANT: May I know at what price you are looking for airfare?

USER: Sure, my price is 200.

ASSISTANT: Please share your source point?

USER: Sure, I am heading from New York LGA.

ASSISTANT: Please wait for a while, I will check and get back to you.

USER: Sure.

ASSISTANT: Thank you for waiting, no flights found on your given dates.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for choosing us.