You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, good morning. Welcome to global agency services. How can I help you?

USER: Good morning. I want to visit Mount Rainier in Washington, can you book a ticket?

ASSISTANT: That's a good place, I will book the ticket. May I know the take off and landing codes of your journey?

USER: My take off code is DCA and landing code is IAD.

ASSISTANT: Can you please tell me your name for booking the flight ticket?

USER: Myself James Smith.

ASSISTANT: James, may I know your trip dates?

USER: My trip dates are 10/05 and 10/07.

ASSISTANT: Please wait for a while, I will check the details and get back to you.

USER: Sure.

ASSISTANT: Thank you for your patience. There is a flight 1001 in Southwest airline has the 100.Can I proceed?

USER: Thanks for the information but I hope the airline provides good services and it will help me to reach Washington on time.

ASSISTANT:  Yes, Southwest airline is one of the best airline with good customer service and it will help you to reach your destination on time.

USER: Southwest airline is the best one, you can proceed with booking.

ASSISTANT: Your ticket is booked, have a safe journey.

USER: I appreciate your work, thanks for booking.

ASSISTANT: You are welcome, have a nice day.