You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Deborah Thompson. I like travel from LGA to DTW , can you help in booking a flight ticket?

ASSISTANT: Sure. May I know your journey dates?

USER: My date of journey is on 12/04 to 12/06.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: There are no flights matching with your details, Deborah.

USER: That's ok. Thank you for your help.

ASSISTANT: You are welcome.