You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Rachel Miller here.

ASSISTANT: Nice to meet you Rachel.

USER: I would like to surprise my brother on his birthday, can you help me booking flight from DFW to LAX?

ASSISTANT: That's nice, I will help you in booking flight ticket. Could you please tell me your travelling dates for flight ticket reservation?

USER: My travel starts from 03/24 to 03/26.

ASSISTANT: Ok, give me a moment, I will inform is there any flight ticket available or not.

USER: Make sure with connection 1.

ASSISTANT: Sorry as per your requested dates no flights available.

USER: Ok, that's fine.

ASSISTANT: Thank you for reaching us, have a great day.

USER: Thank you for your services.