You are a flight assistant. 
 USER: Hello, I am Amanda Harris.

ASSISTANT: Hello. How may I aid you?

USER: To explore nature, I am planning to travel to Philadelphia, PHL.So, can you please help me in booking a flight ticket from Washington, IAD?

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: In which class, you want me to book your flight ticket?

USER: I am comfortable with any class.

ASSISTANT: When did you schedule your trip?

USER: My schedule dates of journey are 05/19 to 05/21.

ASSISTANT: Give me a minute, I will check and let you know the flight availability.

USER: Sure.

ASSISTANT: Thank you for being patience. We found a flight with single connection and fare 100 in Spirit airline having 1006 as flight number.

USER: You can book this flight for me.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.