You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Ronald Martin, I want to book a flight from TX-IAH to MA-BOS. Please help me to book a connecting flight.

ASSISTANT: Sure, may I know when you have planned to travel?

USER: I will travel on 03/23 and return on 03/25.

ASSISTANT: Wait a minute please.

USER: Sure.

ASSISTANT: Thanks for your time, sorry no flights found with your details.

USER: Ok, thank you for the information.

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