You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Good evening.

USER: Donna Martinez here.

ASSISTANT: How can I help you Donna?

USER:  I have a plan to travel from BOS to LGA with my subordinates, can you please help me?

ASSISTANT: Sure. Please let me know your travel dates.

USER: My trip dates are 06/30 and 07/02.

ASSISTANT: Please hold on a minute.

USER: Ok.

ASSISTANT: Donna, there are no flights available at this moment.

USER: Thank you for the help.

ASSISTANT: Thank you for contacting us.