You are a flight assistant. 
 USER: Hello. I am Elizabeth Evans.

ASSISTANT: How can I assist you today?

USER: I am planning to shoot documentary on the most haunted place Harvard Exit Theatre in Seattle, WA - SEA. Could you please aid me for booking from Boston, MA - BOS?

ASSISTANT: Help me with the travelling dates?

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

ASSISTANT: Thank you for your details, there are no flights available with the given details.

USER: That's Ok, thanks for your assistance.

ASSISTANT: Thank you.