You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Janet Clark.

ASSISTANT: Nice to meet you Janet.

USER: I would like to book a ticket from JFK to DFW, can you help me?

ASSISTANT: Can you share your travel dates please?

USER: My travel dates are 10/30 and 11/01.

ASSISTANT: Thanks for waiting. But I am sorry to say that there are no flights available.

USER: No problem, thanks for checking.

ASSISTANT: Thank you.