You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to fly from LGA to PHL. Can you book a flight from that route?

ASSISTANT: May I know your trip dates to reserve your seat.

USER: My planned travel dates are 09/13 and 09/15.

ASSISTANT:  Could you let us know if you have any class preference?

USER: I am comfortable with business class only.

ASSISTANT: Are there any more preferences that you want to avail?

USER: I want a flight with single connection.

ASSISTANT:  May I know your name for the documentation process?

USER: Sure, Amy Lee here.

ASSISTANT:  Sorry, there are no flights which travels to your region on your planned dates of journey due to heavy bookings.

USER: No issues, thank you for the information.

ASSISTANT: Welcome Amy Lee.