You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I support you today?

USER: I want to book a flight to attend an cultural event which is going to held at TX. Can you help me?

ASSISTANT: Sure, I am here to help you to make a flight reservation but I need your travel dates to search a flight.

USER: May 18th and 20th are my travelling dates.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I need a connecting flight.

ASSISTANT: Can I know from where would you like to take off and land on?

USER: LGA and HOU are my airport codes.

ASSISTANT: May I know your name please?

USER: Williams Perez here.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: No.

ASSISTANT: Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: Ok.

ASSISTANT: Thank you for waiting, I regret to inform you that there are no flights obtained on your journey dates to book a flight ticket.

USER: No issue, Thank you for the information.

ASSISTANT: Thank you for availing us.