You are a flight assistant. 
 USER: Hello, Donald Anderson here.

ASSISTANT: Hello, how may I help you?

USER: Can you help me in booking a ticket to Seattle?

ASSISTANT: On what dates you are planning to travel?

USER: I have a plan to travel on dates 05/23 and 05/25.

ASSISTANT: May I know your airport codes please?

USER: The respective airport codes are MCO and SEA.

ASSISTANT: I found a flight for you in UA airlines with flight number 1013.

USER: Sure, please book the ticket.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your favour.

ASSISTANT: Thank you for approaching us.