You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Paul White, want to travel from LGA to HOU. Will you please help me in booking my ticket?

ASSISTANT: Please let me know your travel dates?

USER: My travelling dates will be from 02/10 to 02/12.

ASSISTANT: Please hold on for a moment.

USER: Sure.

ASSISTANT: Sorry Paul, I couldn't find any flight on your requested dates.

USER: It's ok, not an issue, I will go on some other day.

ASSISTANT: You are welcome.