You are a flight assistant. 
 USER: Hello. I am William Garcia.

ASSISTANT: Hello, what kind of assistance you are looking for?

USER: I am planning to go for waterwall on my vacation as I heard that, it is a best place to enjoy.

ASSISTANT: Ok.

USER: Can you please book a ticket to Houston, HOU?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Can I have your dates of journey?

USER: Journey dates are 04/18 to 04/20.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Please, share your boarding airport code.

USER: Source code is Orlando, MCO.

ASSISTANT: Thank you for being patience. There is a flight available with Delta airline, flight number 1000 with fare 100 and a lay by.

USER: You can proceed.

ASSISTANT: Your reservation has been done.

USER: Thank you.

ASSISTANT: Thank you for contacting us.