You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: This is Charles Anderson, can you help me to book a flight ticket from LGA to HOU?

ASSISTANT: Sure, may I know your travel dates?

USER: I am travelling from Mar 02 to Mar 04.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a lay by in between my journey.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

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

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.