You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Christopher Harris.

ASSISTANT: Nice to meet you.

USER: I am looking for a flight from LGA to DTW, can you help me out?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My travel dates are from 04/08 till 04/10.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: There is no flights found under your preferable details.

USER: That's ok, no problem. Thank you for your help.