You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Timothy Martin.

ASSISTANT: How may I help you?

USER: I need to book a flight ticket from New York, NY-EWR to Boston, MA-BOS.

ASSISTANT: Sure, help me with the travel dates?

USER: I want to travel on dates 10/16 and 10/18.

ASSISTANT: We do not found any flights running in your preferred routes.

USER: No problem, thank you for your help.

ASSISTANT: Thank you for opting us.