You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am looking to book a flight ticket from LAX to IAH. Can you help me for that?

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: My travelling dates are May 29 and May 31.

ASSISTANT: Ok, please share your name.

USER: My name is David Martin.

ASSISTANT: May I know your connection limit?

USER: I prefer to book a single connecting flight.

ASSISTANT: Do you have any specification?

USER: No.

ASSISTANT: Sorry, no flights are available on your preferable travel dates.

USER: That's ok, thank you for checking.

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