You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I would like to visit New York to meet my childhood friend, can you please book me a ticket from HOU to LGA?

ASSISTANT: Sure, I am gleeful to help you. Could you please provide your travelling dates to search for the flight?

USER: Ok, I want to travel on 04/24 and back on 04/26.

ASSISTANT: Just hold on a moment, I will check flight availability in this route.

USER: Ok, take your time.

ASSISTANT: Sorry to say, no flights were found on your route.

USER: It's ok, no problem. Thank you for your response.

ASSISTANT: May I know your name for documentation purpose?

USER: My name is Steven Garcia.

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

USER: Most welcome.