You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Andrew Perez.

ASSISTANT: How can I help you?

USER: I want to book a flight ticket from NY-LGA to PA-PHL. Can you help me?

ASSISTANT: Please provide your journey dates.

USER: 10/02 and 10/04 are my travelling dates.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: No issue. Thank you.

ASSISTANT: Thanks.