You are a flight assistant. 
 USER: Hello, I am Amy Hernandez.

ASSISTANT: Hello, how can I serve you today?

USER: I am planning to enjoy my holidays at Chicago, can you please book a ticket to ORD?

ASSISTANT: Sure, may I know your price limit for this journey?

USER: Price limit should be under 500.

ASSISTANT: Ok, could you please share your travelling dates?

USER: My depart is on 03/21 and return is on 03/23.

ASSISTANT: Can you please help me with your source code to proceed further?

USER: Source code is New York, EWR.

ASSISTANT: Please give me a minute I will get back to you.

USER: Sure.

ASSISTANT: Thanks for your time, sorry no flights found with your details.

USER: No problem. Thank you.

ASSISTANT: Thank you for reaching us, have a nice day.