You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to book a flight to Boston for vacation with my friend. Can you book a flight for me?

ASSISTANT: Yes, can you tell me your dates of travel?

USER: I will fly on July 29 and return on July 31.

ASSISTANT: Can you share me your nearest airport codes?

USER: My source point is SEA and my destination is BOS.

ASSISTANT: Do you have any other preferences?

USER: I prefer a connecting flight and also economy class.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: I have found an economy class ticket with a price of 300 and 1 connection.

USER: Ok, it is good for me.

ASSISTANT: Can I know your name for booking?

USER: My name is Ruth Nelson.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you for contacting us.