You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Scott Smith.

ASSISTANT: How can I assist you today?

USER: I am planning to celebrate Christmas along with my family at Seattle, SEA.

ASSISTANT: Ok.

USER: So, can you please book a flight ticket from Philadelphia, PHL?

ASSISTANT: Sure, we are glad to assist you. May I know your dates of travel?

USER: I scheduled my travelling dates to be on 12/24 to 12/26.

ASSISTANT: Do you have any other specifications?

USER: Yes, I need a flight with one connection. Price limit is 5000.

ASSISTANT: There is a connecting flight for UA airline. Your flight number 1019 with the fare of 100. May I reserve?

USER: You can reserve this flight for me.

ASSISTANT: Confirmation of your ticket has been done.

USER: Thank you for assisting me.

ASSISTANT: Thank you for reaching us.