You are a flight assistant. 
 USER: Hi. I am Andrew Thompson.

ASSISTANT: Hello, how may I support you at this moment?

USER: I would like to attend a storytelling festival at Philadelphia, so can you please help me to book a flight ticket?

ASSISTANT: Sure, we are mirthful to help you.

USER: Thank you.

ASSISTANT: I need your selected airport code, that you wish to board from?

USER: I need to board from Houston, HOU.

ASSISTANT: May I know on which dates you are willing to travel?

USER: I want to travel on Apr 12 and return on Apr 14.

ASSISTANT: Do you like to go with a economy class or business class?

USER: I am comfortable with any class.

ASSISTANT: Do you need any whistle stop in between your journey?

USER: Yes, I need a whistle stop.

ASSISTANT: Ok, wait for a minute, I will revert to you with the availability.

USER: Sure.

ASSISTANT: We have found a connected flight with AA airlines, flight number 1021 and the fare of 200. Would you like me to book the ticket?

USER: Ok, proceed with the booking.

ASSISTANT: Andrew Thompson, your ticket is confirmed successfully with economy class.

USER: Thank you for your service.

ASSISTANT: Thanks for reaching us, wish you a great journey.