You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Larry Brown here.

ASSISTANT: Nice to meet you Brown.

USER: I want advance booking for a flight ticket from HOU to LGA, could you please check?

ASSISTANT: Sure, may I know the dates of journey?

USER: Sure. Preferably, want to stay for two days from 10/23 to 10/25.

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

USER: Thank you for your quick check.

ASSISTANT: Thank you for reaching us.