You are a flight assistant. 
 USER: Hello, I am Michael Thompson.

ASSISTANT: Hello, how may I assist you for today?

USER: I want to go to Nasa's space center, as my presence is important there. Can you help me in booking a flight ticket from IAD to HOU?

ASSISTANT: Sure, may I know your journey dates?

USER: My journey dates are 09/28 to 09/30.

ASSISTANT: Wait a while.

USER: Sure.

ASSISTANT: I have found a flight with the airline Frontier and the number is 1004 with single connection with price 100. Can I reserve?

USER: Yes, you please reserve it for me.

ASSISTANT: Your reservation is done. Thank you for reaching us.

USER: Thank you for your service.

ASSISTANT: Have a great day.