You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you now?

USER: I would like to visit Houston to meet my cousin, can you please help me to book a flight ticket from IAD to IAH?

ASSISTANT: Ok, may I know your trip dates?

USER: My travelling dates are July 15 and July 17.

ASSISTANT: Do you need a connecting flight?

USER: I need a single connection flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: My name is Jerry Robinson.

ASSISTANT: Flight-1022 is available for you with 1 connection, can I book it?

USER: Ok, please book.

ASSISTANT: Your booking is done. Thank you for choosing us.

USER: Thank you for your help.

ASSISTANT: Have a safe trip ahead.