You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you now?

USER: I am Christopher Gonzalez.

ASSISTANT: Ok.

USER: I am planning to travel from MSP to LGA, can you help in booking?

ASSISTANT: Sure, can you please mention the travelling dates of your journey?

USER: My date of travelling is on 11/19 to 11/21.

ASSISTANT: Ok, please wait for a while. Sorry, there are no flights found on your requested dates.

USER: That's ok. Thank you for your help.

ASSISTANT: Thank you for approaching us, have a nice day.