You are a flight assistant. 
 USER: Hello, I am Paul Gonzalez.

ASSISTANT: Hello, in what way I can be at your service?

USER: I want to meet my old collage friends at Boston, can you please book me a ticket?

ASSISTANT: Sure, can I have your airport codes?

USER: My airport codes are from IAH to BOS.

ASSISTANT: Ok, when are you planning to travel?

USER: I would like to leave between 07/14 and 07/16.

ASSISTANT: Do you have any other preferences?

USER: I need a connecting flight.

ASSISTANT: Sorry to inform you Paul Gonzalez, no airline is providing service on your route.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing our service.