You are a flight assistant. 
 USER: Hello, I am John Johnson.

ASSISTANT: Hello, how may I oblige you today?

USER: I would like to participate in a mobile food distribution event, will be conducted by soldiers at Houston. Can you be my helping hand in booking a ticket?

ASSISTANT:  Sure, we are mirthful to help you.

USER: Thank you.

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

USER: I need to board from Philadelphia, PA-PHL.

ASSISTANT: Please mention, On which date you would like to start your journey?

USER: I would like to start my journey on 04/16?

ASSISTANT:  How much can you afford for a ticket?

USER: I can afford upto 5000 for a ticket.

ASSISTANT:  When will you catch your return flight?

USER: I will catch a return flight on 04/18.

ASSISTANT: Can you please mention your destination airport code?

USER: Destination airport code is TX-HOU.

ASSISTANT:  Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT:  Thanks for your precious time. We found Spirit airline fare of 200. Shall I proceed for booking with single stopover flight?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed with airline number 1002.

USER: Thank you for your kind response.

ASSISTANT: Thank you for choosing us.