You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Andrew Garcia.

ASSISTANT: How may I help you today?

USER: I am planning to attend music concert at LGA, can you please help me with booking a flight ticket from ORD?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: Sure, I would like to take off on 06/12 and return on 06/14.

ASSISTANT: Please wait for a minute.

USER: Ok, but please make sure that the price limit does not exceed 200.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for contacting us, have a great day.

USER: You are welcome.