You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Myself Frank Smith. I would like to meet my friend at Denver, will you help me in booking the flight ticket from IAD to DEN?

ASSISTANT: Sure, can you provide your journey dates?

USER: My travelling dates are 05/30 and 06/01.

ASSISTANT: Give me a minute.

USER: Ok, I will wait for your response.

ASSISTANT: There is a connecting flight with number 1010 in airline Hawaiian, the fare is 100.

USER: Sure, you can proceed with the booking.

ASSISTANT: Your ticket is reserved, happy journey.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.