You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Emma Baker here, I want to travel to visit Detroit, can you please help me to book a ticket from JFK to DTW?

ASSISTANT: Sure, I am here to help you. Could you please share your travelling dates to search a flight?

USER: Ok, my travelling dates are 01/11 and 01/13.

ASSISTANT: Please wait for a moment.

USER: Ok, take your time.

ASSISTANT: Sorry, there is no flight is available for you.

USER: Ok, no problem. Thank you for your help.

ASSISTANT: Thank you for reaching us.