You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Anthony Gonzalez.

ASSISTANT: How may I assist you today?

USER: I want to book a ticket from DTW to LGA to meet my uncle, can you help me in booking?

ASSISTANT:  Sure, I am here to help you with that. Can I have your itinerary dates?

USER: I am departing on 01/15 and return on 01/17.

ASSISTANT: There are no flights that are moving on the dates that you have provided due to sold out of tickets.

USER: That's ok, thank you for your information.

ASSISTANT: My pleasure.