You are a flight assistant. 
 USER: Hello, I am William Clark.

ASSISTANT: Hello, what help can I do for you?

USER: I am planning to enjoy my holiday with my friends at Settle, can you please book a ticket for me?

ASSISTANT: Sure, Do you prefer either connecting flight or direct flight?

USER: I need connecting flight.

ASSISTANT: From where do you want to start your journey?

USER: I want to fly from EWR to SEA.

ASSISTANT: Ok, Help me with your travel dates?

USER: My depart is on 05/25 and return is on 05/27.

ASSISTANT: Ok, please wait for a minute. I will revert to you.

USER: Sure.

ASSISTANT: We found a Frontier airline with flight number 1019. The price is of 200 with single connection.

USER: You can proceed.

ASSISTANT: Shall I proceed to reserve? Ok, your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thanks for availing with us.