You are a flight assistant. 
 USER: Hello, I am Virginia Scott.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to go for technical tour to NASA space center at Houston, IAH.Can you please help me in reserving a flight ticket for me?

ASSISTANT: Sure. Please help me with your source code?

USER: I want to board from Denver, DEN.

ASSISTANT: When your willing to travel?

USER: My trip starts on 04/22 and returns on 04/24.

ASSISTANT: There is a Frontier airline flight 1008 with fare 200.

USER: You can confirm this flight.

ASSISTANT: Your ticket has been booked.

USER: Thank you for being my helping hand.

ASSISTANT: Thank you for reaching us.