You are a flight assistant. 
 USER: Hello,. I am Jerry Hill.

ASSISTANT: Hello, how can I help you today?

USER: I need a direct flight to attend a surgery in Boston, BOS. Can you please avail a flight ticket for me?

ASSISTANT: Sure, may I know your boarding point?

USER: My boarding point is Charlotte, CLT.

ASSISTANT: Can you please share your planned travel dates?

USER: My journey dates are, depart on 11/05 and arrival on 11/07.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights found with your given dates.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for opting us.