You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Janet Johnson, can you please help me to book a flight from DTW to OAK?

ASSISTANT: Ok, share you your preferable dates to go.

USER: My travelling dates are 05/04 and 05/06.

ASSISTANT: Sorry, there is no flight on your route to book the ticket.

USER: Ok, no issues. Thank you for your time..

ASSISTANT: Thanks for consulting us.