You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: I am looking for a flight from IAH to PHL. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, May I know the journey dates?

USER: My planned journey dates are June 28 and June 30.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a single connecting flight in my journey.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: Is there any other requirements?

USER: No, thank's for asking.

ASSISTANT: May I know your name?

USER: Sure, myself Nancy Brown.

ASSISTANT: Please wait a minute.

USER: Sure, I will wait.

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

USER: Not an issue, anyway thank you for the information.

ASSISTANT: Thank you for availing us.

USER: Thank you for your service.