You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: Debra Garcia here. Reserve a flight ticket from DTW to JFK, can you help me?

ASSISTANT: On which dates you are willing to travel?

USER: Ok, my itinerary dates are 07/08 and 07/10.

ASSISTANT: Sorry, there is no flights are available.

USER: Not an issue, thank you for your information.

ASSISTANT: Most welcome.