You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Can you help me in booking flight ticket from MCO to SFO?

ASSISTANT: Let me know your travelling dates.

USER: My travelling dates are May 14 and May 16.

ASSISTANT: Do you have any preference?

USER: I prefer economy class with connecting flight.

ASSISTANT: Let me know your name.

USER: I am Margaret Thompson.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: Ok, not a problem.

ASSISTANT: Thank you.

USER: Thank you for checking.