You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I am Samuel Davis. Can you find a flight for me from MCO to SFO, to meet my father on his birthday?

ASSISTANT: Sure, may I know your travelling dates?

USER: Ok, my trip dates are from 10/20 and 10/22.

ASSISTANT: I could not find any flight with your travel dates.

USER: It's ok, thanks for your information.

ASSISTANT: My pleasure.