You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Myself Andrew Collins. Will you be my helping hand in booking a ticket from DEN to BOS?

ASSISTANT: Yes, which dates that you are planning to travel Andrew?

USER: My journey dates are 09/12 to 09/14.

ASSISTANT: Ok, wait I will check for the flights.

USER: Take your time.

ASSISTANT: Thank you for waiting, sorry Clark, there is no flights found on your trip dates to your region.

USER: No problem. Thank you for helping.

ASSISTANT: You are welcome, have a nice day.