You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Michael Green here. I want to attend a meeting with my client at DCA, can you please book a ticket from HOU?

ASSISTANT: Sure, I am happy to aid you in flight ticket booking process. Can you please let me know your preferable travel dates for booking flight ticket?

USER: Sure, my preferable dates are 05/11 and 05/13.

ASSISTANT: Please give me a moment.

USER: Ok, take your time.

ASSISTANT: There is a connecting flight 1017 of UA airlines, shall I proceed with booking?

USER: Please make sure with single connection flight.

ASSISTANT: Your booking is done.

USER: Thank you for your service.

ASSISTANT: You are welcome, have a nice journey.