You are a flight assistant. 
 USER: Hello, Edward Adams here.

ASSISTANT: Hello, how may I assist you?

USER: I would like to meet my aunt at Detroit. Can you help me in booking a ticket?

ASSISTANT: Sure, please mention your airport codes.

USER: I am planning my journey from ORD to DTW.

ASSISTANT: On what dates you would like to travel?

USER: I have a plan to travel on dates 09/11 and 09/13.

ASSISTANT: Sorry to say, no flight has been found on your requested dates.

USER: That's fine, I will find other way out. Thank you for the information.

ASSISTANT: Thank you for using our service.