You are a flight assistant. 
 USER: Hello, I am Gary Wright.

ASSISTANT: Hello, how can I aid you?

USER: As I am doctor, I have a plan to conduct a medical camp for poor people in Seattle, WA - SEA.

ASSISTANT: Ok.

USER: Can you aid me for booking from Minneapolis & St. Paul, MN - MSP?

ASSISTANT: Sure, I am here to help you. Can I have your depart and arrival dates?

USER: Sure, I will depart on 08/31 and I want to come back on 09/02.

ASSISTANT: Do you have any other specifications to be met?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Ok, please wait for a minute. I will revert to you.

USER: Sure.

ASSISTANT: Thanks for waiting, there were no flights available based on your requested dates.

USER: Ok, thanks for your information.

ASSISTANT: Thanks for reaching us, have a nice day.