You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Pamela Carter here.

ASSISTANT: How can I assist you today?

USER: I am a politician, I have to meet mayor of New York. So please book my ticket from Boston.

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My itinerary dates are 11/25 and 11/27.

ASSISTANT: Please provide your airport codes that you want to travel.

USER: My genesis and terminus airport codes are BOS and JFK.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flights available under your preferable details.

USER: No problem, thank you.

ASSISTANT: Welcome, have a great day.