You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Christopher White. I would like to fly from Boston MA-BOS, can you please assist me in making an airline reservation to Oakland CA-OAK?

ASSISTANT: Sure, please share your travel dates.

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

ASSISTANT: I am sorry to inform that we don't have any flights running on the route given by you.

USER: Ok, no worries at all. Thank you for your response.

ASSISTANT: Thank you, hope to serve you better next time.