You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am Edward White, want to attend for storytelling festival.Can you please book a flight ticket for me?

ASSISTANT: Ok. Help me with your airport codes.

USER: My boarding point is Seattle, SEA. Boston, BOS is my landing point.

ASSISTANT: Kindly mention your specifications.

USER: Price should not exceed 1000. I need a connecting flight.

ASSISTANT: To book a ticket, may I have your journey dates?

USER: My travelling dates are from 01/08 to 01/10.

ASSISTANT: Ok. Unfortunately, there were no flights with your information.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for choosing me.