You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I amend you?

USER: I am Scott Campbell here.

ASSISTANT: Yes Scott.

USER: Can you please reserve my ticket from LGA to LAX?

ASSISTANT: Please share your travelling dates?

USER: Ok, my dates of journey is from 07/29 to 07/31. Please make sure that the price is 200.

ASSISTANT: Sorry, no flights as per your details.

USER: That's fine.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your service.