You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Elizabeth Adams.

ASSISTANT: How may I assist you today?

USER: I have to visit Chicago city because my family friends are planning a small event. Can you please help me in checking the flight availability?

ASSISTANT: Sure, I need some of your travelling details to find a flight, can you please help me in providing your journey dates that you have planned for your trip?

USER: Thank you for considering my request, I am willing to departure on the date of 05/15 and I need a return ticket on the date of 05/17.

ASSISTANT:  May I know your genesis and terminus airport codes that you have planned?

USER: The nearest airports of genesis and terminus locations are PHL and ORD.

ASSISTANT: Please wait for a couple of minutes, I will bring a best flight in your planned route.

USER: Ok, take your own time and provide me a flight which is having a connection limit 1.

ASSISTANT: Thank you for your patience, there are no flights that are moving on the dates that you have provided due to sold out of tickets.

USER: Oh! It is sad to hear from you. I will choose some other source to travel. Anyways thank you for spending your time in searching the flight.

ASSISTANT: Thanks for reaching us, have a great day.

USER: You are welcome.