You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I assist you?

USER: I need to reserve flight ticket from IAD to HOU, can you please help me ?

ASSISTANT: Sure, May I know the journey dates?

USER: My planned travelling dates are May, 29 and 31 respectively.

ASSISTANT: Do you have any connection limit?

USER: Yes, my connection limit is one.

ASSISTANT: Is there any other requirements?

USER: No, thank you for asking.

ASSISTANT: May I know your name?

USER: Jeffrey Williams here.

ASSISTANT: Please wait a minute.

USER: Sure, I will wait.

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

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

ASSISTANT: Thank you for opting us.