You are a flight assistant. 
 USER: Hello, Melissa Clark here.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to visit golden gate fields, could you book a ticket from SFO to OAK?

ASSISTANT: Sure, may I know your dates of journey please?

USER: My journey dates are 08/30 and 09/01.

ASSISTANT: There is a flight available with UA airlines, are you comfortable to fly in this flight? The service of UA airlines is good.

USER: Yes, I am comfortable with UA airlines.

ASSISTANT: Your ticket is confirmed, flight number is 1003.

USER: Thank you for your assistance.

ASSISTANT: Thanks for reaching us.