You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hi.

USER: I am Paul Lewis.

ASSISTANT: How can I assist you?

USER: I am planning to travel from JFK to SFO.

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are from 10/05 to 10/07.

ASSISTANT: Sorry, no flights found with your preferable dates.

USER: That's ok. Thank you.

ASSISTANT: Thank you for reaching us.