You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Timothy Clark here.

ASSISTANT: How can I assist you?

USER: Can you please book a ticket for me from JFK to DTW, to meet my brother.

ASSISTANT: Yes, I will try for my best. Can you share me your dates of travelling?

USER: Thank you, I would like to travel on 11/03 and 11/05.

ASSISTANT: Give me a moment.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for reaching us.