You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Is this a flight booking agency?

ASSISTANT: Yes, you are at right place. May I know how can I assist you at this moment?

USER: My friend has undergone an open heart surgery last week. I would like to meet him. Can you help me in booking a ticket to Phoenix?

ASSISTANT: Sure, I am mirthful to help you.

USER: Thank you.

ASSISTANT: May I know from where you would like to start your journey?

USER: I would like to start my journey from Philadelphia.

ASSISTANT: Which airports do you prefer in Philadelphia and Phoenix?

USER: Since there are many airports in these regions, I prefer PHL in Philadelphia and PHX in Phoenix.

ASSISTANT: When are you planning your journey from Philadelphia?

USER: I have a plan to travel in the month of May. Please find the availability on 05/09.

ASSISTANT: Are you planning for round trip or one way?

USER: Yes, I am planning for round trip. Please book the return ticket on 05/11.

ASSISTANT: Thanks for providing the details, please be on hold while I will check for availability of flights on this route.

USER: Sure, take your own time.

ASSISTANT: Thanks for your patience. According to your preferences, there is a service with Delta airlines available with a ticket fare of 100 and 1 connection limit, shall I book your ticket with this flight?

USER: Ok, please book the ticket with the name Susan Wright.

ASSISTANT: Your ticket is confirmed and the number associated with the flight is 1004.

USER: Thank you for your quality service.

ASSISTANT: Thank you for choosing our services, have a safe journey.