You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Nancy Johnson. Can you please help me to book a ticket with the fare of 5000 to meet my friends?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Kindly mention your travel dates?

USER: My travel dates are on 08/15 and 08/17.

ASSISTANT: Ok, please help me with your airport codes.

USER: My airport codes are from JFK to LGA.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry to inform, no flights found with your requirement.

USER: Ok, no problem.

ASSISTANT: Thanks for reaching us.

USER: Thank you so much.