You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Please book me a ticket from BOS to LAS to meet my family.

ASSISTANT: I will help you. May I know your name?

USER: Myself Elizabeth Williams.

ASSISTANT: Can you please share your travel dates?

USER: I have planned to travel on Dec 22nd and return on Dec 24th.

ASSISTANT: Do you have any limits on number of connections?

USER: I am ok with any flight not only connection limit.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry, I did not find any flights for you.

USER: Ok, no problem. Thank you so much.

ASSISTANT: Thank you for reaching us.