You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I would like to meet my friend in DTW. Can you please make a reservation from IAH?

ASSISTANT: Sure, may I know the travelling dates?

USER: I want to travel on June 19 and need to return on June 21.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a flight with single connection.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: Rebecca King.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for opting us.