You are a flight assistant. 
 USER: Hello,. I am Patricia Collins.

ASSISTANT: Hello Patricia Collins, how may I assist you for the day?

USER: I want to book a flight from Phoenix to meet my parents after a long time in New York. Will you help me with that?

ASSISTANT: Sure, I will help you. Will you please mention your journey dates?

USER: My depart will be on 04/26 and return on 04/28.

ASSISTANT: Ok, please mention your source and destination details.

USER: My source code is AZ-PHX and destination code is NY-EWR.

ASSISTANT: Ok, thanks for your time, please wait.

USER: Sure.

ASSISTANT: Thanks for your patience, no flights were found based on your schedule.

USER: Ok, no issue. Thank you for your response.

ASSISTANT: Thanks for choosing us.