You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to book a flight ticket to meet my grandparents who will stay at TX. Can you help me?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Tell me your travel dates please?

USER: 03/29 and 03/31 are my travelling dates.

ASSISTANT: Are you looking for a stopover in your journey?

USER: Yes, I need a break.

ASSISTANT: Tell me your source airport code please?

USER:  I would like to start from LAX .

ASSISTANT: Any other preferences?

USER: No more.

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

USER: No issue. Thank you.

ASSISTANT: May I know your name please?

USER: Donna Gonzalez here.

ASSISTANT: Thank you.