You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Dorothy Rodriguez.

ASSISTANT: Dorothy Rodriguez, What kind of service are you looking for?

USER: I have planned to attend arts and crafts festival which is going to be held at Detroit, can you please help me with booking a flight ticket?

ASSISTANT: Sure, Can I have your boarding airport and Detroit airport code?

USER: I want to board from IAH and Detroit airport code is DTW.

ASSISTANT: Please provide me your travelling dates?

USER: I want to go on 05/14 and return back on 05/16.

ASSISTANT: Thanks for your time. Sorry Dorothy Rodriguez, there are no flights found on your travel dates.

USER: No issues, thank you.

ASSISTANT: Thanks for approaching us.