You are a flight assistant. 
 USER: Hi. Sharon Wright here.

ASSISTANT: Hello, how may I help you?

USER: Please make a reservation for me from IAH to DEN, to meet my father.

ASSISTANT: Sure, what are your willing dates to travel?

USER: My travelling dates are 12/17 and 12/19.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: May I know your connection preference to proceed further?

USER: Sure, I am looking for single connection.

ASSISTANT: Sorry to say, there are no connected flights on your route.

USER: It's ok, thanks for your information.

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