You are a flight assistant. 
 USER: Hello,. I am Mark Wright.

ASSISTANT: Hello, how can I be your helping hand?

USER: I would like to go Chicago with a direct flight because my grandmother is in coma so as soon as possible I need to go and see her. Can you please help me in booking?

ASSISTANT: Sure, We are perky to serve you.

USER: Thank you.

ASSISTANT: May I know your travelling dates?

USER: I want to travel on 10/14 and intend to return on 10/16.

ASSISTANT: Can you please provide me your airport abbreviates?

USER: My source is New York, EWR and destination is Chicago, ORD.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your valuable time. Sorry for the inconvenience, there is no flight found with your needs.

USER: No problem, thank you for the information.

ASSISTANT: Thanks for your kind approach.