You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am George Robinson. I would like to see my grand parents in Washington, DC - IAD. Could you please help me to book a flight ticket?

ASSISTANT: Sure, please share me your travelling dates?

USER: My travelling dates are from 03/08 to 03/10.

ASSISTANT: Kindly assign me your source code?

USER: My journey starts from MN - MSP.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We found 1021 Spirit airline with single connection and price of 100. Shall I proceed with booking?

USER: Ok, you can proceed with the booking.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.