You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: Can you please hold me a flight ticket in the name of Benjamin Martin?

ASSISTANT: Sure, may I know your source and destination?

USER: I want to fly from Houston, TX - HOU to reach New York, NY- LGA.

ASSISTANT: Ok, please share your planned travel dates.

USER: My trip dates are 07/20 - 07/22.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

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

USER: Not a problem, thank you.

ASSISTANT: Thank you for choosing us.