You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you please book a flight ticket from IAH  to MCO to attend a marriage in Orlando?

ASSISTANT: Sure, I will help you with booking. Please share me your planned journey dates?

USER: My journey dates are on Sept 9th and 11th.

ASSISTANT: Do you want a connecting flight?

USER: I am comfortable with any flight.

ASSISTANT: Is there any other requirement?

USER: No.

ASSISTANT: May I know your good name?

USER: My name is Helen Harris.

ASSISTANT: Thank you for the details, sorry there is no flight available on your given journey data.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for visiting us, we hope see you again.