You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you please help me in booking a flight ticket from New York, EWR to reach Washington, IAD?

ASSISTANT: Sure, let me know your trip dates?

USER: My journey dates are from Jan 12 to Jan 14.

ASSISTANT: Would you like to travel in any specified airline?

USER: I am comfortable with any airline.

ASSISTANT: Do you have any other preferences for your journey?

USER: I prefer to travel in economy class flight.

ASSISTANT: ok, can you share your name please?

USER: My name is Janet Parker.

ASSISTANT: Sorry, no flights as per your request.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you for contacting us.